1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.dao.orm.hibernate;
24  
25  import com.liferay.portal.kernel.util.GetterUtil;
26  import com.liferay.portal.util.PropsUtil;
27  
28  import com.opensymphony.oscache.base.CacheEntry;
29  
30  import java.util.Properties;
31  
32  import org.hibernate.cache.Cache;
33  import org.hibernate.cache.CacheException;
34  import org.hibernate.cache.CacheProvider;
35  import org.hibernate.cache.Timestamper;
36  import org.hibernate.util.StringHelper;
37  
38  /**
39   * <a href="OSCacheProvider.java.html"><b><i>View Source</i></b></a>
40   *
41   * @author Mathias Bogaert
42   * @author Brian Wing Shun Chan
43   */
44  public class OSCacheProvider implements CacheProvider {
45  
46      public static final String OSCACHE_REFRESH_PERIOD = "refresh.period";
47  
48      public static final String OSCACHE_CRON = "cron";
49  
50      public Cache buildCache(String region, Properties properties)
51          throws CacheException {
52  
53          int refreshPeriod = GetterUtil.getInteger(
54              PropsUtil.get(StringHelper.qualify(region, OSCACHE_REFRESH_PERIOD)),
55              CacheEntry.INDEFINITE_EXPIRY);
56  
57          String cron = PropsUtil.get(StringHelper.qualify(region, OSCACHE_CRON));
58  
59          return new CacheWrapper(new OSCache(refreshPeriod, cron, region));
60      }
61  
62      public boolean isMinimalPutsEnabledByDefault() {
63          return false;
64      }
65  
66      public long nextTimestamp() {
67          return Timestamper.next();
68      }
69  
70      public void start(Properties properties) throws CacheException {
71      }
72  
73      public void stop() {
74      }
75  
76  }